Resets popup to default options.

<div class="definition">
    reset()
</div>

<h4>Description</h4>

The popup must exists. If you use 

<textarea class="javascript">
w2popup.open(options)
</textarea> 

second time, it does not reset current options, but extends them with the new ones. Use <span class="method">reset</span> 
method to reset options to defaults. See <a href="w2popup.defaults" class="method">w2popup.defaults</a>